123 lines
4.4 KiB
JavaScript
123 lines
4.4 KiB
JavaScript
/*
|
|
Copyright 2020 The Matrix.org Foundation C.I.C.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
import '../skinned-sdk'; // Must be first for skinning to work
|
|
import React from "react";
|
|
import Adapter from "enzyme-adapter-react-16";
|
|
import { configure, mount } from "enzyme";
|
|
|
|
import {
|
|
RovingTabIndexProvider,
|
|
RovingTabIndexWrapper,
|
|
useRovingTabIndex,
|
|
} from "../../src/accessibility/RovingTabIndex";
|
|
|
|
configure({ adapter: new Adapter() });
|
|
|
|
const Button = (props) => {
|
|
const [onFocus, isActive, ref] = useRovingTabIndex();
|
|
return <button {...props} onFocus={onFocus} tabIndex={isActive ? 0 : -1} ref={ref} />;
|
|
};
|
|
|
|
const checkTabIndexes = (buttons, expectations) => {
|
|
expect(buttons.length).toBe(expectations.length);
|
|
for (let i = 0; i < buttons.length; i++) {
|
|
expect(buttons.at(i).prop("tabIndex")).toBe(expectations[i]);
|
|
}
|
|
};
|
|
|
|
// give the buttons keys for the fibre reconciler to not treat them all as the same
|
|
const button1 = <Button key={1}>a</Button>;
|
|
const button2 = <Button key={2}>b</Button>;
|
|
const button3 = <Button key={3}>c</Button>;
|
|
const button4 = <Button key={4}>d</Button>;
|
|
|
|
describe("RovingTabIndex", () => {
|
|
it("RovingTabIndexProvider renders children as expected", () => {
|
|
const wrapper = mount(<RovingTabIndexProvider>
|
|
{() => <div><span>Test</span></div>}
|
|
</RovingTabIndexProvider>);
|
|
expect(wrapper.text()).toBe("Test");
|
|
expect(wrapper.html()).toBe('<div><span>Test</span></div>');
|
|
});
|
|
|
|
it("RovingTabIndexProvider works as expected with useRovingTabIndex", () => {
|
|
const wrapper = mount(<RovingTabIndexProvider>
|
|
{() => <React.Fragment>
|
|
{ button1 }
|
|
{ button2 }
|
|
{ button3 }
|
|
</React.Fragment>}
|
|
</RovingTabIndexProvider>);
|
|
|
|
// should begin with 0th being active
|
|
checkTabIndexes(wrapper.find("button"), [0, -1, -1]);
|
|
|
|
// focus on 2nd button and test it is the only active one
|
|
wrapper.find("button").at(2).simulate("focus");
|
|
wrapper.update();
|
|
checkTabIndexes(wrapper.find("button"), [-1, -1, 0]);
|
|
|
|
// focus on 1st button and test it is the only active one
|
|
wrapper.find("button").at(1).simulate("focus");
|
|
wrapper.update();
|
|
checkTabIndexes(wrapper.find("button"), [-1, 0, -1]);
|
|
|
|
// check that the active button does not change even on an explicit blur event
|
|
wrapper.find("button").at(1).simulate("blur");
|
|
wrapper.update();
|
|
checkTabIndexes(wrapper.find("button"), [-1, 0, -1]);
|
|
|
|
// update the children, it should remain on the same button
|
|
wrapper.setProps({
|
|
children: () => [button1, button4, button2, button3],
|
|
});
|
|
wrapper.update();
|
|
checkTabIndexes(wrapper.find("button"), [-1, -1, 0, -1]);
|
|
|
|
// update the children, remove the active button, it should move to the next one
|
|
wrapper.setProps({
|
|
children: () => [button1, button4, button3],
|
|
});
|
|
wrapper.update();
|
|
checkTabIndexes(wrapper.find("button"), [-1, -1, 0]);
|
|
});
|
|
|
|
it("RovingTabIndexProvider works as expected with RovingTabIndexWrapper", () => {
|
|
const wrapper = mount(<RovingTabIndexProvider>
|
|
{() => <React.Fragment>
|
|
{ button1 }
|
|
{ button2 }
|
|
<RovingTabIndexWrapper>
|
|
{({onFocus, isActive, ref}) =>
|
|
<button onFocus={onFocus} tabIndex={isActive ? 0 : -1} ref={ref}>.</button>
|
|
}
|
|
</RovingTabIndexWrapper>
|
|
</React.Fragment>}
|
|
</RovingTabIndexProvider>);
|
|
|
|
// should begin with 0th being active
|
|
checkTabIndexes(wrapper.find("button"), [0, -1, -1]);
|
|
|
|
// focus on 2nd button and test it is the only active one
|
|
wrapper.find("button").at(2).simulate("focus");
|
|
wrapper.update();
|
|
checkTabIndexes(wrapper.find("button"), [-1, -1, 0]);
|
|
});
|
|
});
|
|
|
|
|